body{
	text-align: center;
}
h1{
	text-align: center;
}
table{
	width: 600px;
	border: 1px solid #000000;
	text-align: center;
	margin: 0 auto;
}
th,td{
	padding: 5px;
	border: 1px solid #000000;
}
.button{
	width: 280px;
	margin: 0 2px;
}
span{
	color: red;
}